Models of Automotive Power Supply Components for the Transient Analysis of Switching Events and Faults

Highly automated driving increases the requirements on the transient voltage stability of automotive power systems. Simulations are necessary to analyze voltage stability in early stages of development. In this paper, necessary extensions of existing simulation approaches are discussed to investigate the transient effects of switching operations and electrical faults on the voltage stability of other components. First, the models of the relevant faults and power supply components are presented. Finally, a validation of the developed models is performed using laboratory measurements of an exemplary power supply topology.